Optical vortex beams, possessing spatial polarization or phase singularities, have intriguing
properties such as the ability to yield super-resolved spots under focussing, and the ability to …

Angular momentum, a fundamental physical quantity, can be divided into spin angular
momentum (SAM) and orbital angular momentum (OAM) in electromagnetic waves. Helically …

A novel type of few-mode fiber, characterized by an inverse-parabolic graded-index profile,
is proposed for the robust transmission of cylindrical vector modes as well as modes …

A dual-cladding photonic quasi-crystal fiber is theoretically proposed to robustly transmit
orbital angular momentum (OAM) modes. This fiber, based on conventional silica …

We demonstrate the supercontinuum (SC) generation in a suspended-core As_2S_3
chalcogenide microstructured optical fiber (MOF). The variation of SC is investigated by …

We present a compact (130 μm cladding diameter) trench-assisted multi-orbital-angular-
momentum (OAM) multi-ring fiber with 19 rings each supporting 22 modes with 18 OAM …

We proposed a new circular photonic crystal fiber (C-PCF), which can support 14 orbital
angular momentum (OAM) modes transmission, with the good features of wide bandwidth …

Based on 5 requirements which are essential for stable OAM mode transmission, we
propose an OAM fiber family based on a structure of circular photonic crystal fiber (C-PCF) …

Optical orbital angular momentum (OAM) has become a hot research topic because of its
unique properties due to its spiral distribution of phases. The production and transmission of …

The promise of the infinite-dimensionality of orbital angular momentum (OAM) and its
application to free-space and fiber communications has attracted immense attention in …